Samsung had started selling its first USB-based 4G-only modems for TeliaSonera in December last year and promised to launch 2G/3G supporting modem in first half of 2010. Well, they’ve delivered it with the launch of GT-B3730 that will give the same blistering speeds while connected to a 4G network or 2G/3G in case of no 4G coverage.

Like the previous version, this USB modem is based on Samsung’s proprietary Kalmia chip and supports 2.6GHz. It supports 3G on 2100MHz whereas 2G/EDGE on 900MHz/1800MHz. As far as speed goes, 4G can give users a max download/upload speed of 100/50Mbps (megabits); 3G of 17/5.7Mbps; and 2G up to 296Kbps (kilobits).

The modem supports Windows operating systems as well as Mac OS X 10.5 and 10.6.

Samsung has announced the sales of its LTE USB dongle, GT-B3710. The dongle takes advantage of TeliaSonera’s newest LTE network to deliver speeds fiber-like speeds over-the-air at up to 100Mbps. Samsung’s dongle is based on its Kalmia chip, supports 2.6GHz band and is fully compliant with 3GPP LTE Release 8 standard.

An updated version of the dongle expected in the first half of 2010 that will feature backward compatibility support like HSPA, EDGE.

TeliaSonera have struck a deal with Samsung that will mostly make the European operator, the first ones to sell 4G/LTE modems. The modem (GT-B3710) is USB-based and will be available commercially in Sweden and Norway in 2010 with a promise of up to 10 times higher speed than available today.

The chip inside the LTE device provided by Samsung is known as Kalmia, which they’d developed to integrate in mobile devices. The modem supports 2.6GHz band and complies with the latest 3GPP standard.